package cn.com.yixing.loginregistration.Adapter;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 自定义拦截器，用于检测用户是否登录
 */
@Component
public class InterceptorConfig implements HandlerInterceptor {

    private static Logger log = LoggerFactory.getLogger(InterceptorConfig.class);

    /**
     * 进入controller层之前拦截请求
     * @param httpServletRequest
     * @param httpServletResponse
     * @param o
     * @return
     * @throws Exception
     */
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        log.info("---------------------开始进入请求地址拦截----------------------------");
        // 解决前端axios请求403
        httpServletResponse.setHeader("Access-Control-Allow-Origin", "*");
        httpServletResponse.setHeader("Access-Control-Allow-Headers", "Content-Type,Content-Length, Authorization, Accept,X-Requested-With");
        httpServletResponse.setHeader("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS");
        httpServletResponse.setHeader("X-Powered-By","Jetty");
        String method= httpServletRequest.getMethod();
        if (method.equals("OPTIONS")){
            httpServletResponse.setStatus(200);
            return false;
        }
        log.info(method);
        System.out.println(method);
        return true;

//        log.info("---------------------开始进入请求地址拦截----------------------------");
//        HttpSession session = httpServletRequest.getSession();
//        if(session.getAttribute("userName") != null){
//            return true;
//        }
//        else{
//            PrintWriter printWriter = httpServletResponse.getWriter();
//            printWriter.write("{code:0,message:\"session is invalid,please login again!\"}");
//            return false;
//        }
    }



    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {
        // log.info("--------------处理请求完成后视图渲染之前的处理操作---------------");
    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {
        // log.info("---------------视图渲染之后的操作-------------------------0");
    }
}
